Tabletop cooking assembly

ABSTRACT

A tabletop cooking assembly for preparing foods thereon comprises a cooking element having a cooking area and a vent disposed peripherally to one side of the cooking element defining an aperture for receiving smoke from the cooking element. The assembly includes a first exhaust duct, a filter assembly, an electrostatic precipitator, and a high velocity blower. The first exhaust duct is substantially unobstructed and in fluid communication with the vent for directing smoke away from the cooking element. The high velocity blower is in fluid communication with the first exhaust duct and the filter assembly for drawing smoke from the cooking element through the vent. The heating system includes a retaining plate, a plurality of heating strips, and an insulating material. The heating strips are disposed between the retaining plate and the heating surface to heat the cooking area for preparing foods thereon.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional PatentApplication Ser. No. 61/818,655 filed May 2, 2013.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a tabletop cooking assembly,particularly to a teppanyaki assembly that has increased cookingefficiently, increased collection of smoke and oil from a cookingsurface during operation, and increased safety features.

2. Description of the Related Art

A typical teppanyaki assembly 20, shown in FIG. 1, includes a tableframe 22 having a cooking element 24 disposed thereon, a vent 26defining an aperture 28 and a vent hood 30 disposed adjacent theaperture 28. An exhaust duct 32 is connected to the aperture 28 fordirecting smoke away from the cooking element 24. The assembly alsoincludes a filter 34 in fluid communication with the vent 26 and in thepath of the air flow of the exhaust duct 32 and an electrostaticprecipitator 36.

When the cooking element 24 generates smoke, including oil fumes andodorous air while cooking, the smoke passes through the vent hood 30 andthe aperture 28 and into the exhaust duct 32. The smoke is filtered bythe filter 34 and further cleaned by the electrostatic precipitator 36.Generally, the filter 34 needs to be cleaned often for keeping the aircirculation at a desired rate. A blower 38 is downstream and separatefrom the electrostatic precipitator 36. The electrostatic precipitator36 and the blower 38 are individual and separate units connectedtogether by a duct. One drawback to such a configuration is that theassembly has inefficiencies that lead to insufficient capture of thesmoke generated on the cooking surface.

One such teppanyaki assembly is shown in United States PatentApplication Publication 2012/0247345 to Chiang having the exhaust duct32 diverted around a control panel 40, which reduces the amount of airflow and less smoke is captured from the cooking element 24. Anotherdraw back is that if a fire were to erupt in the exhaust duct 32adjacent to the control panel 40, a tremendous amount of heat would begenerated and result in the control panel 40 being melted, burned, orshorted out, such that any safety mechanisms could not be activated.

Various heating mechanisms 42 are known for use with teppanyakiassemblies. One such heating mechanism 42 is shown in FIGS. 2A and 2B.The underside of the cooking element 24 has a plurality of channels 44milled into the underside of the cooking element 24. Each of thechannels 44 is tubular, or round, and receives a tubular or roundheating strip 46. Each of the heating strips 46 are separate from oneanother, as best shown in FIG. 2, but each of the heating strips 46 areconnected together with an exposed connection 48. These exposedconnections 48 generate heat which can result in injury when theteppanyaki assemblies are utilized. The heating mechanism 42 alsoincludes a retaining plate 50, formed of metal, directly adjacent to theheating strips 46. Because the heating strips 46 are tubular and thechannels 44 are tubular, the heat transfer from the heating strips 46 tothe cooking element 24 is inefficient because there is a small contactarea and the heat is transferred from the heating strips 46 to theretaining plate 50. During operation, the retaining plate 50 absorbs theheat from the heating strips 46 and becomes very hot, which exposesusers to potential injury. Further, the combination of the exposedconnections 48 being in series with one another and the tubular channels44 requires the entire heating mechanism 42 to be removed to service anyof the heating strips 46.

Accordingly, it would be advantageous to provide a teppanyaki assemblythat overcomes these inadequacies.

SUMMARY OF THE INVENTION AND ADVANTAGES

The subject invention discloses tabletop cooking assembly for preparingfoods thereon. The assembly comprises a table frame supporting a cookingelement for receiving items to be cooked. A vent is disposedperipherally to one side of the cooking element and defines an aperturefor receiving smoke generated during the preparation of food on thecooking element and a vent hood is disposed adjacent to the vent. Afirst exhaust duct is in fluid communication with the vent for directingsmoke away from the cooking element. The first exhaust duct comprises anupper plenum and a lower plenum that is substantially perpendicular tothe upper plenum. The first exhaust duct is substantially unobstructedto achieve improved air flow and smoke collection. A filter assembly isin fluid communication with the lower plenum and comprises a filterdisposed therein for filtering the smoke as the smoke passes through thefilter assembly. A high velocity blower in fluid communication with thefirst exhaust duct and the filter assembly draws smoke from the cookingelement through the vent at a velocity greater than 750 feet per minuteto substantially cool the smoke for improving removal of particles fromthe smoke as a result of the first exhaust duct being substantiallyunobstructed.

The subject invention also discloses a heating system for coupling to aheating surface of the cooking element. A release mechanism releasablysecures the heating system into engagement with the heating surface andallows the heating system to be loosened from the heating surfacewithout being completely removed therefrom. The heating system includesa retaining plate, a plurality of heating strips, and an insulatingmaterial disposed between the retaining plate and the heating strips fordirecting heat from the strips toward the heating surface. The heatingstrips are disposed between the retaining plate and the heating surfaceto heat the cooking area for preparing foods thereon. Each of theplurality of heating elements are separately removable from one anotherfrom the heating system for allowing efficient replacement thereof.

The subject invention provides numerous advantages over the related artassemblies. First, the subject invention ensures complete, or nearlycomplete, capture of smoked generated on the cooking surface whilecooking because the first exhaust duct is not substantially obstructed.Second, the subject invention has better temperature control and energyefficiency because the heating mechanism is insulated and has a largercontact area between the heating elements and the cooking surface.

BRIEF DESCRIPTION OF THE DRAWINGS

Other advantages of the present invention will be readily appreciated,as the same becomes better understood by reference to the followingdetailed description when considered in connection with the accompanyingdrawings wherein:

FIG. 1 is a cross-sectional view of a related art cooking assembly;

FIG. 2A is a perspective view of an underside of a related art cookingsurface for cooking assembly and FIG. 2B is a cross-sectional view ofthe heating mechanism having channels milled therein to receive heatingelements;

FIG. 3 is a perspective view of one embodiment of a tabletop cookingassembly formed according to the subject invention;

FIG. 4 is a perspective view of another embodiment of a tabletop cookingassembly formed according to the subject invention;

FIG. 5 is a cross-sectional view of the embodiment of the tabletopcooking assembly shown in FIG. 4 from a customer side;

FIG. 6 is a cross-sectional view of the embodiment of the tabletopcooking assembly shown in FIG. 4 from a food preparation side;

FIG. 7 is a perspective view of one embodiment of a first exhaust ductand a filter assembly according to the subject invention;

FIG. 8 is a perspective view of another embodiment of a first exhaustduct and a filter assembly according to the subject invention;

FIG. 9 is a top-view of one embodiment of a high velocity blower and anelectrostatic precipitator according to the subject invention;

FIG. 10 is a top-view of another embodiment of a high velocity blowerand an electrostatic precipitator according to the subject invention;

FIG. 11 is a front perspective view of the high velocity blower and theelectrostatic precipitator shown in FIG. 10;

FIG. 12 is a perspective view of the electrostatic precipitator;

FIG. 13 is a fragmented front perspective view of a tabletop cookingassembly according to the subject invention;

FIG. 14 is a perspective view of a temperature sensor used with thesubject invention;

FIG. 15 is a front-view of a control panel according to the subjectinvention;

FIG. 16 is a perspective view of a heating system formed according tothe subject invention;

FIG. 17 is a cross-sectional view of a heating system formed accordingto the subject invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the Figures, wherein like numerals indicate like orcorresponding parts throughout the several views, a tabletop cookingassembly for preparing foods thereon is shown from a food preparationside generally at 100 in FIG. 3. The food preparation side is to beunderstood as the side where a chef may be located while preparing foodon the assembly 100. The side opposite the preparation side is to beunderstood as the customer side. The assembly 100 generally comprises acooking element 102 having a cooking area 104 on a topside for receivingitems to be cooked and a serving area 106 adjacent the cooking area 104.The serving area 106 may be configured to seat numerous diners and maybe various different shapes, such as square, rectangle, semi-circular,or the like. Similarly, the cooking element 102 may be various shapesdepending on the particular configuration. The cooking element 102 maybe square, rectangular, semi-circular or the like without deviating fromthe subject invention. However, it is preferred that the cooking element102 is rectangular in shape and the surrounding serving area 106 isunheated.

The assembly 100 may include grease drawers 108 as is customary forcleaning the assembly 100. A vent 110 is disposed peripherally to oneside of the cooking element 102 and defines an aperture 112 forreceiving smoke generated during the preparation of food on the cookingelement 102. FIG. 4 is an alternative embodiment of the tabletop cookingassembly 100.

Referring to FIG. 5, a cross sectional view of the assembly 100 in FIG.4 is shown from the customer side. FIG. 6 is a cross sectional view ofthe assembly 100 in FIG. 4 shown from the food preparation side. It isto be appreciated that the subjection may be have either a right or lefthand configuration and is shown in only one configuration in theFigures. The assembly 100 comprises a table frame 114 supporting thecooking element 102. The cooking element 102 has a heating surface 116on an underside and a heating system 118 is disposed under the cookingelement 102 for heating the cooking area 104. A vent hood 120 isdisposed adjacent to the vent 110 for collecting the smoke.

The assembly 100 generally includes a first exhaust duct 122, a filterassembly 124, an electrostatic precipitator 126, and a high velocityblower 128. The high velocity blower 128 is in fluid communication withthe first exhaust duct 122 and the filter assembly 124 for drawing smokefrom the cooking element 102 through the vent 110. The first exhaustduct 122 comprises an upper plenum 130 and a lower plenum 132 beingsubstantially perpendicular to the upper plenum 130 as shown in FIGS. 7and 8. The first exhaust duct 122 is substantially unobstructed and influid communication with the vent 110 for directing smoke away from thecooking element 102. The first exhaust duct 122 is substantially free ofobstructions such that the flow of air into the first exhaust duct 122is not diverted, blocked, or restricted by other ducts or similarstructure. It is to be appreciated that typical fire suppressionequipment or sensors may be placed within the first exhaust duct 122without substantially obstructing the air flow.

Various configurations of the upper and lower plenum 132 may be utilizedwith the subject invention, so long as the first exhaust duct 122remains substantially unobstructed. FIG. 7 illustrates one embodiment ofthe upper plenum 130 having one side 134 extending diagonally from thevent 110 and another side 136 extending orthogonally from the vent 110and orthogonally intersecting the lower plenum 132. FIG. 8 illustratesanother embodiment having at least one side 138 extending orthogonallyfrom the vent 110 and at least one side 140 extending diagonally fromthe lower plenum 132. The lower plenum 132 is shown as beingsubstantially triangularly shaped to direct airflow into the filterassembly 124. It is to be appreciated that other shapes may be usedwithout deviating form the subject invention. The lower plenum 132 has asubstantially rectangular opening engaging the filter assembly 124.

The filter assembly 124 is in fluid communication with the lower plenum132 and includes a filter 141 disposed within the filter assembly 124for filtering the smoke as the smoke passes therethrough. The filter 141is supported by a filter bracket 198 that has a plurality ofperforations to allow the passage of grease from the filter 141, throughthe bracket 198 and into the drawers 108. The filter 141 is typically ametal filter as is known to those of ordinary skill in the art, such asa grease filter. The filter 141 is removable from the filter assembly124 for allowing cleaning or replacement. The filter assembly 124 alsoincludes a slanted bottom with a plurality of holes therein for allowingany grease to pass therethrough and into the drawers 108.

Referring back to FIG. 5, the vent hood 120 includes a cover 142 havingplurality of slots 144 extending vertically along the length of the venthood 120. It has been discovered that in combination with the subjectinvention, to ensure complete capture of the smoke, the orientation ofthe slots 144 in the cover 142 impacts the collection of the smoke. Itis preferable that the slots 144 have a height at least 50% of a heightof the vent hood 120 and extend the length of the cooking area 104.Typically, the slots 144 may range from 2-4 inches in height. Theembodiment shown in FIG. 5 illustrates the vent hood 120 and the slots144 having the same length as the length of the cooking area 104 and theslots 144 extend vertically.

It is to be appreciated that the cooking area 104 may have a cookingarea length (A) less than a cooking element length (B) as best shown inFIG. 4. In other words, the cooking area 104 is less than the area ofthe cooking element 102. While it is expected that some heat willtransfer through the entire cooking element 102, the cooking area 104 isreferred to as the area that receives direct heat as will be discussedin more detail below. Preferably, the vent 110 has a vent length (C)that extends at least the cooking area length (A) to ensure capture ofthe smoke. FIG. 3 illustrates the vent hood length (D) and the ventlength (C) being the same as the cooking area length (A). The vent hoodlength (D) may be longer than the cooking area length (A). It is to beappreciated that the length of the vent 110 may extend further than thelength of the cooking area 104 depending upon the potential uses of andthe types of food prepared on the cooking assembly 100.

FIG. 9 is a cross-sectional view of one embodiment of the high velocityblower 128 and the electrostatic precipitator 126. The high velocityblower 128 draws smoke from the cooking element 102 through the vent 110at a velocity greater than 750 feet per minute to substantially cool thesmoke for improving removal of particles from the smoke as a result ofthe first exhaust duct 122 being substantially unobstructed. Preferably,the high velocity blower 128 draws smoke through the vent 110 at avelocity of greater than 1,250 feet per minute. The high velocity blower128 preferably has a blower capacity of greater than 1,500 cubic feetper minute and a discharge efficiency as measured by the air collectedthrough the vent 110 of at least 50% and more preferably 75%. Mostpreferably, the high velocity blower 128 is a backward curved,centrifugal blower 128 with an external rotor motor with a blowercapacity of at least 2,000 cubic feet per minute. It is to beappreciated that different types of high velocity blowers may beutilized to achieve the characteristics of the subject invention whilestill practicing the subject invention. The high velocity blower 128exhausts the air through an exhaust opening 174 on the food preparationside.

The combination of the substantially unobstructed first exhaust vent 110and the high velocity blower 128 collects the smoke from the cookingarea 104 at a rate that cools the smoke to a temperature of no more than10 degrees above room temperature. Preferably, no more than 7 degrees ofabove room temperature can be obtained with the subject invention. Forexample, if the room temperature is 68° F., then the high velocityblower 128 exhausts the smoke at 78° F. or less. The subject inventionprovides smoke collection at such a velocity to sufficiently cool thesmoke and to begin the condensation of particles on the filter assembly124 thereby improving the efficiency of the cooking assembly 100 and thecleanliness of the exhausted smoke. Because of these advantages, thesubject invention can then be used in closed environments without theneed for fresh air make-up and the need for outside exhausts.

In addition to condensing and capturing the particles on the filterassembly 124, the electrostatic precipitator 126 further removesparticles. The electrostatic precipitator 126 is in fluid communicationwith and directly connected to the high velocity blower 128. By directlyconnecting the high velocity blower 128 to the electrostaticprecipitator 126, the subject invention improves the efficiency of thesmoke collection which is one drawback of the related art. Mostpreferably, the electrostatic precipitator 126 and the high velocityblower 128 are unitary for improving air flow efficiency drawn from thecooking element 102 as shown in FIGS. 10 and 11. In other words, theblower 128 and the electrostatic precipitator 126 share one continuoushousing, thereby improving air flow efficiency. The electrostaticprecipitator 126 typically includes at least one of a pre-filter 146, astatic collection cell 148, and a media filter 150 as shown in FIG. 12.It is to be appreciated that the electrostatic precipitator 126 may havemore or fewer filters or cells depending upon the application.

The subject invention may also include a muffler 152 mounted downstreamof the high velocity blower 128 on the exhaust opening 174, as shown inFIGS. 10 and 11. The muffler 152 helps reduce noise of the subjectinvention. It is preferable that the muffler 152 also include odorabsorbing media for further cleaning of the smoke. This provides yetanother mechanism for removing particles from the smoke and ensuringthat the discharge air meets local air quality standards. Typically, forair to be exhausted into a closed environment without the requirementfor fresh make-up air, there needs to be less than 10 ppm of grease inthe smoke. The subject invention achieves these requirements. Morespecifically, the subject invention provides exhaust with less than 5ppm of grease in the smoke. The embodiment in FIGS. 10 and 11 shows themuffler 152 mounted to the exhaust opening 174. FIG. 13 shows themuffler 152 being removeable from the high velocity blower 128 housing.The subject invention may also include a fire damper 196 at the exhaustopening 174. The fire damper 196 may be in front or behind the muffler152, if present. If a fire were to occur within the assembly 100, thefire damper 196 would close the exhaust opening 174 to contain the firewithin the assembly 100.

As discussed above in connection with the related art assemblies, it isimportant that the cooking tables are safe for use within cookingestablishments and the drawback has been that related art configurationshave led to safety problems. The subject invention overcomes theseproblems by utilizing a safety system that includes a plurality ofswitches and sensors that are monitored by a controller 154 and a firesuppression system 156. Specifically, the safety system of the subjectinvention includes a filter switch 158, ESP switches 160, and a mufflerswitch 162, if present. The filter switch 158 detects the presence ofthe filter 141, which is shown in FIG. 6. The ESP switches 160 detect atleast the presence of the pre-filter 146 and the media filter 150. Themuffler switch 162 detects the presence of the muffler 152. Thecontroller 154 monitors the ESP switches 160, the muffler switch 162,and the filter switch 158 and will not energize the heating elementunless the same are closed.

The fire suppression system 156 is best shown in FIG. 13 and includes atank of fire retardant 164 that is directed and dispensed into the firstexhaust duct 122 and the filter assembly 124 through nozzles 166. FIG.14 is a close-up perspective view of a temperature sensor 168 locatedwithin the first exhaust duct 122 and the filter assembly 124.Preferably, the temperature sensor 168 is a frangible metal temperaturesensor 168. If a fire occurs in either unit, the temperature sensor 168breaks when the temperature exceeds a predetermined limit and the fireretardant 164 is dispensed into the cooking assembly 100. It is to beappreciated that additional fire nozzles may be located in other areasof the cooking assembly 100 for increased safety.

The cooking assembly 100 of the subject invention may also includepressure sensors 170, such as a pressure tube, that are placed withinthe exhaust duct 122 to ensure that proper air flow is maintained, asshown in FIGS. 5 and 6. If the pressure drops within the exhaust duct122, power is turned off to the heating system 118. More specifically,if there is a loss of 25% or more of the airflow, such as due to dirtyfilters, blocked ducts, inefficiencies, or the like, the heatingmechanism is shut down. After starting, if air flow is occurring throughthe duct, the heating system 118 is activated after being switched on.If there is no air flow, then the heating system 118 will not beactivated.

FIG. 15 shows one embodiment of a control panel 172 for the subjectinvention. The control panel 172 is used to control the cooking assembly100 and typically includes an on/off switch 176, a blower motor switch178, and a temperature setting control 180. As discussed above inconnection with related art, it was common for the control panels to bepositioned directly inline with the exhaust ducts and even have theexhaust ducts surrounding the control panel, as shown in FIG. 1. Thelocation of the control panel in these related art assemblies reducedand restricted the air flow through the exhaust ducts such that smokewould escape from the table surface into the surrounding areas. Further,if a fire were to develop in the exhaust duct, the temperatures wouldbecome so high that the control panel would overheat, burn, and melt thewiring that connected the control panel to other safety mechanisms. Thesubject invention has configured the exhaust duct 122 to allow thecontrol panel 172 to be placed spaced from the exhaust duct 122, therebyeliminating these problems. Further, the subject invention ensurescomplete, or substantially complete, capture of the smoke from the tablebecause of the increased air flow or air suction by making sure theexhaust duct 122 is not interrupted or diverted. Another aspect of thesubject invention is that the assembly 100 is able to contain any firethat occurs on the cooking surface. In other words, any smoke generateddue to a fire on the cooking surface will be captured into the exhaustduct 122 and the fire itself can be contained within the exhaust duct122. These advantages are obtained due to the increased and improved airflow through the assembly 100.

Referring now to FIGS. 16 and 17, a heating system 118 is shown coupledto the heating surface 116 of the cooking area 104. Preferably, theheating surface 116 is substantially planar and is free of grooves. Theheating system 118 includes a retaining plate 182, a plurality ofheating strips 184, and an insulating material 186. The heating strips184 are disposed between the retaining plate 182 and the heating surface116 to heat the cooking area 104 for preparing foods thereon. Each ofthe heating strips 184 is separately energized to produce heat to theheating system 118, which allows for better temperature control of thecooking area 104. The insulating material 186 is disposed between theretaining plate 182 and the heating strips 184 for directing heat fromthe strips towards the heating surface 116. Further, the insulatingmaterial 186 allows for any wiring to be a standard wire instead of hightemperature wire because the heat is driving into the heating surface116, The insulating material 186 is preferably a fire-rated, boardinsulation.

A release mechanism 188 releasably secures the heating system 118 intoengagement with the heating surface 116 and allows the heating system118 to be loosened from the heating surface 116 without being completelyremoved therefrom. The release mechanism 188 is preferably a pluralityof fasteners, such as bolts or the like, that engage the retaining plate182.

Since the heating strips 184 are individually removable from the heatingsystem 118, heating strip guides 190 are utilized for guiding theheating strips 184 during removal and replacement from the heatingsystem 118. The heating strip guides 190 may be located on the retainingplate 182, the insulating material 186, or the heating surface 116. Theheating strip guides 190 space the heating elements from one another.During operation, if any of the heating strips 184 require replacement,the fasteners can be loosened, the connections to the heating strip 178would be disconnected, and then the heating strip 178 can be removedindividually from the heating system 118 by sliding out the heatingstrip 178 therefrom. A new heating strip 178 can be slid into place andthe heating strip guides 190 ensure that the adjacent heating strips 184do not contact one another. The fasteners are tightened and theretaining plate 182 and the insulating material 186 are then secured.The replacement of the heating strip 178 is accomplished without havingto disassemble the assembly 100 or the heating system 118.

One advantage of the subject invention is that each of the plurality ofheating strips 184 are separately removable from one another from theheating system 118 for allowing efficient replacement thereof.Preferably, the heating strips 184 have a generally rectangularcross-section for increasing transfer of heat into the heating surface116 and the cooking area 104. Most preferably, the heating elements arethree phase heating elements, however, other phase heating elements maybe used, such as single phase. Referring to FIG. 16, the heating strips184 include connection members 192 at each end to connect to a powersupply (not shown). The connection members 192 extend from the heatingsystem 118 and are not overly hot to the touch, such that accidents areavoided.

In addition to the safety features discussed above, yet another safetyfeature is that the heating system 118 includes a temperature probe 188extending through the plate for monitoring a temperature of the heatingsystem 118 and a temperature high limit switch 194 mounted to theheating surface 116 for monitoring the temperature of the cookingassembly 100. The controller 154 monitors the temperature high limitswitch 194 and deactivates the heating element in response to thetemperature high limit switch 194 being switched.

Many modifications and variations of the present invention are possiblein light of the above teachings. The invention may be practicedotherwise than as specifically described within the scope of theappended claims. Therefore, it is an object of the appended claims tocover all such modifications and variations that come within the truespirit and scope of this invention.

What is claimed is:
 1. A tabletop cooking assembly for preparing foodsthereon, said assembly comprising: a table frame; a cooking elementsupported by said table frame for directly receiving items to be cooked;a vent disposed peripherally to one side of said cooking element anddefining an aperture for receiving smoke generated during thepreparation of food on said cooking element; a vent hood disposedadjacent said vent and extending above said cooking element; a firstexhaust duct comprising an upper plenum and a lower plenum, said firstexhaust duct being substantially unobstructed and in fluid communicationwith said vent for directing smoke away from said cooking element; afilter assembly in fluid communication with said lower plenum andcomprising a filter disposed therein for filtering the smoke as thesmoke passes through said filter assembly; and a high velocity blower influid communication with said first exhaust duct and said filterassembly for drawing smoke from said cooking element through said ventat a velocity greater than 750 feet per minute to substantially cool thesmoke for improving removal of particles from the smoke as a result ofsaid first exhaust duct being substantially unobstructed.
 2. Thetabletop cooking assembly as set forth in claim 1, wherein said highvelocity blower is further defined as drawing smoke through said vent ata velocity of greater than 1250 feet per minute.
 3. The tabletop cookingassembly as set forth in claim 1, further comprising a heating systemdisposed under said cooking element for heating a cooking area having alength less than a length of said cooking element.
 4. The tabletopcooking assembly as set forth in claim 3, wherein said vent has a lengthextending at least said length of said cooking area.
 5. The tabletopcooking assembly as set forth in claim 4, wherein said vent hood furthercomprises a cover having a plurality of slots extending vertically alongsaid length of said cover.
 6. The tabletop cooking assembly as set forthin claim 1, wherein said upper plenum extends diagonally from said vent.7. The tabletop cooking assembly as set forth in claim 6, wherein saidupper plenum orthogonally intersects said lower plenum.
 8. The tabletopcooking assembly as set forth in claim 1, wherein said upper plenumfurther comprises at least one side extending vertically from said lowerplenum.
 9. The tabletop cooking assembly as set forth in claim 1,wherein said upper plenum further comprises one side extendingdiagonally from said vent and another side extending orthogonally fromsaid vent.
 10. The tabletop cooking assembly as set forth in claim 4,wherein said length of said vent is further defined as extending furtherthan said length of said cooking area.
 11. The tabletop cooking assemblyas set forth in claim 1, further comprising an electrostaticprecipitator in fluid communication with and directly connected to saidhigh velocity blower.
 12. The tabletop cooking assembly as set forth inclaim 11, wherein said electrostatic precipitator and said high velocityblower are unitary for improving air flow efficiency drawn from saidcooking element.
 13. The tabletop cooking assembly as set forth in claim11, wherein said electrostatic precipitator further comprises at leastone of a pre-filter, a static collection cell, and a media filter. 14.The tabletop cooking assembly as set forth in claim 13, farthercomprising at least one ESP switch for sensing the presence of either ofsaid pre-filter and said media filter.
 15. The tabletop cooking assemblyas set forth in claim 14, further comprising a muffler mounteddownstream of said high velocity blower.
 16. The tabletop cookingassembly as set forth in claim 15, wherein said muffler furthercomprises odor absorbing media for further cleaning of the smoke. 17.The tabletop cooking assembly as set forth in claim 15, furthercomprising a muffler switch for sensing the presence of said muffler.18. The tabletop cooking assembly as set forth in claim 17, furthercomprising a filter switch for sensing the presence of said filter. 19.The tabletop cooking assembly as set forth in claim 18, furthercomprising a controller for monitoring said ESP switch, said mufflerswitch, and said filter switch.
 20. The tabletop cooking assembly as setforth in claim 1, wherein said high velocity blower is further definedas having a blower capacity of greater than 1500 cubic feet per minute.21. The tabletop cooking assembly as set forth in claim 20, wherein saidhigh velocity blower has a discharge efficiency through said vent of atleast 75% of said blower capacity.